package hc.um.action;

import hc.um.service.UserService;

import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class DeleteUserServlet
 */
@WebServlet("/DeleteUserServlet")
public class DeleteUserServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	private UserService userService = new UserService();
	
    /**
     * @see HttpServlet#HttpServlet()
     */
    public DeleteUserServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		
		try {
			this.deleteUser(request, response);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}			
	}

	public void deleteUser(HttpServletRequest request,
			HttpServletResponse response) throws IOException, SQLException {
		
		String userid = "";		
		
		userid = request.getParameter("userid");
		
		if ( userService.deleteUser(userid) == 1 )
		{
			response.getWriter().write(creatXmlTextDeleteUser("Success","Delete the user successfully!",userid));
		} 
		else 
		{
			response.getWriter().write(creatXmlTextDeleteUser("Fail","Delete User failed.",""));
		}
	}
	
	public String creatXmlTextDeleteUser(String result, String message, String userid)
	{
		String xmltext = null;

		xmltext = "<deleteuser><result>" + result + "</result><message>"
				+ message + "</message><userid>" + userid + "</userid></deleteuser>";
		
		System.out.println("xmltext="+xmltext);
		
		return xmltext;
	}		
}
